













Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)
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Rod Burkhart
> 3 dayworked real good.Used it on a ford flathead motor
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Connor
Greater than one weekUsed the 89mm size hone for my 84mm cylinders in my 52 motor and seemed to work good. Just lubed it up with some motor oil and followed instruction and the cross hatching seemed to come out really good, gotta speed it up on the last few strokes or else your cross hatches will not be close to 45 degrees which I found out quick enough.
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Jake Zeller
> 3 dayUsed it on my 4.9 ford engine. It did a fantastic job.
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Erik P.
> 3 dayExcellent item for the price.
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Sheldon Wisoky I
> 3 dayWorked very well
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Gerald Blair
> 3 dayTechnique for a ball hone is easily found online but it would have been reassuring to have the instructions directly from manufacturer. It worked as I expected and should last a long time.
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Michael Beach
> 3 dayDoes a beautiful job as advertised. No complaints on performance or price.
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R. Stubbs
> 3 dayPerformed as needed
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mbc
> 3 daywhat a product, real good finishing hone.
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Richard bendel
Greater than one weekthese flex zones will give you the best results ever